43055631539 has 4 divisors (see below), whose sum is σ = 43056097080. Its totient is φ = 43055166000.

The previous prime is 43055631497. The next prime is 43055631547. The reversal of 43055631539 is 93513655034.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 43055631539 - 2¹² = 43055627443 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 43055631539.

It is not an unprimeable number, because it can be changed into a prime (43055631139) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41837 + ... + 296414.

It is an arithmetic number, because the mean of its divisors is an integer number (10764024270).

Almost surely, 2^43055631539 is an apocalyptic number.

43055631539 is a deficient number, since it is larger than the sum of its proper divisors (465541).

43055631539 is a wasteful number, since it uses less digits than its factorization.

43055631539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 465540.

The product of its (nonzero) digits is 729000, while the sum is 44.

The spelling of 43055631539 in words is "forty-three billion, fifty-five million, six hundred thirty-one thousand, five hundred thirty-nine".